waldron



(No Model.) 2 Sheets-Sheet 2.

0. P. WALDRON.

OSOILLATING STEAM ENGINE.

Patented Apr. 21, 1885.

BY Cg- ATTORNEYS.

. WITNESSES N4 PETERS, Phowumo m her. Washiugwn. D. c.

. desired position.

UNITED STATES PATENT .rrrca CHARLES P. WALDRON, OF NEW YORK, N. Y.

OSCILLATING STEAM-ENGINE.

SPECIPICATION for ining part of Letters Patent No. 316,207, dated April 21, 1885.

Application filed January '8, 1885. (N0 model) To a-ZZ whom it may concern.-

Be it known that I, CHARLES P. WALDRON, of the city, county, and State of New York, have invented a new and Improved Oscillating Steam-Engine, of which the following is a full, clear, and exact description.

This invention consists of a new link-movement for operating the slide-valve of oscillating steam-engines, and also of improved means for discharging water from the cylinder of the engine.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a front elevation of an oscillating steam-engine having my invention applied thereto, the steam-chest being broken away to show the slide-valve. Fig. 2 is a sectional elevation of the same, taken on the line a x of Fig. 1. Fig. 3 is a similar view showing the side of the engine, and Fig. 4 is a detailed section of the coupling in the waste-pipe.

The cylinder A is trunnioned in the frame B in the ordinary way, and the piston of the engine is connected by the rod 0 to the crankshaft D in the ordinary way. The link mechanism for operating theslide-valve E is connected to the valve by means of the head F, that slides on the pin F, attached to the steamchest G of the engine, said head F being connected to valve E by the stem E, which is attached to the valve and works in the stuffingbox E fitted in the lower wall of the steamchest G.

The [link mechanism consists of the bellcrank lever H, pivoted to the side of the steamchestG, the segmentallyslotted frame or plate I, attached rigidly to one standard of the frame B, and of the connecting-rods J and K, the former connecting the horizontal arm of the bell-crank lever H to the above-mentioned sliding head F, the latter connecting the vertical arm of the said bell-crank lever H to the sliding block L, fitted in the curved slot of the plate or frame .I. The block L is attached by the rod M to the lever N ,which is pivoted to the frame B at N, and is provided with the spring-catch N adapted to engage with any of the notches in the fixed segmental plate 0, for holding the lever and the block L at any When the block L is held I in the center of the curved plate I, the valve E will close both steam-portsa of the cylinder A, and will be held from any sliding move ment in the steam-chest, thus cutting off the steam from the cylinder. By raising or lowering the block L from this central position in the plate I the bell-crank lever H will be turned upon its pivot, which will raise or lower the sliding head F and valve E, thus opening the steam-ports for starting the engine. The block L being locked in any position above or below the center of the plate I by the lever N, the oscillation of the cylinder A will cause the link mechanism to reciprocate the valve E, alternately opening and closing the ports a, as required for operating the engine. By shifting the lever N the engine may be reversed.

For'discharging the water from the cylinder, I provide the cylinder at its lower end with the pipe P. This pipe has the cock Q fitted in it, and is coupled by the hinge-coupling R to the pipe S, which telescopesinto the horizontal portion T of the waste-pipe T, that conducts the water away. The cock Q may be operated for opening or closing the pipe P by the lever U,that' is pivoted to the frame B, and connected by the link U and pivoted coupling U to the lever or arm Q of the cock, as shown clearly in Figs. 1 and 2, so that by operating the lever U the cock may be opened and closed, and when so opened or to the link U and coupling U ,will in no manner change the position of the cook.

The arrangement of the valve-lever N upon one side of the engine and the lever U upon the other renders the engine very convenient and easy to attend, and the link mechanism is reliable and not easy to get out of order.

The coupling It is composed of the outer shell, 1, that receives the pipe S at its lower end, and the core rplaced in the shell r. This core r receives the pipe P, that connects the coupling with the cock Q, and the shell r-is slotted at r to permit the movement as a hinge, the core r turning in the shell 1" as the engine oscillates. The core 1" is cut away at r to permit a free passage of water through the coupling.

The face-plate G of the valve or steam chamber G is held in place by the screws G,

closed the oscillation of the cylinder, owing.

so that by removing these screws the plate G may be easily removed to afford access to the slide-valve E.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. The link mechanism herein described, consisting of the bell-crank lever 11, pivoted to the cylinder, the segmentally-slotted plate I, fixed rigidly to the standard of the engineframe, sliding block L therein, operating-lever N, and connecting-rods K M, substantially as set forth.

2. The slide valve E, provided with the stern E, in combination with the sliding head F, placed on rod F, and connected to the link mechanism, substantially as described.

The cylinder A, provided with the pipe P, having cock Q, in combination with the lever U, pivoted to the frame and connected to the arm Q, of the cock by the rod U and pivoted coupling U, substantially as described.

4. The cylinder A, provided with the pipe I, and coupled to the pipe S by the hingecoupling R, in combination with the wastepipe T, the pipe P being provided with a cock, Q, substantially as described.

5. The cylinder A, provided with the pipe 1?, having cock Q, and coupled to the pipe S by the hinge-coupling R, in combination with the waste-pipe T and lever U, attached to the cock Q by the link U and pivoted coupling U", substantially as described.

6. The hinged coupling R, composedof the slotted shell 1" and core r, fitted in the shell, the core being formed with a passage through it, and to receive the pipe 1?, substantially as described.

CHARLES P. WVA'LDRON.

Witnesses:

H. A. Wns'r, E. M. CLARK. 

